Python Selenium Webelement 浮动

Question

I'm having the following issue: I'm trying to convert my webelement to float.

asd = driver.find_element_by_xpath("/html/body/div[2]/div[4]/div[2]/div[2]/div[2]/div/div/div/table/tbody/tr[3]/td[17]")

print (float(asd.text.strip()))

Getting this error:

    print (float(asd.text.strip()))
ValueError: could not convert string to float: '3,56'

Thank you!

Answer 1

The string is not in the float format that python recognizes. You can either change it to a period (using float(asd.text.strip().replace(",", ".")) or using locale:

from locale import atof, setlocale, LC_NUMERIC
setlocale(LC_NUMERIC, "YOURLOCALE") # a locale where commas are used as the decimal point
atof(asd.text.strip())

Either method you use, you have to make sure the syntax is consistent over all the sites/pages you run your code on.

Answer 2

try this:

print (float(asd.text.strip().replace(",",".")))

Answer 3

text attribute

text returns the visible text of the element.

In your usecase, the returned text contains a comma as in 3,56 , hence float() won't be able to convert the returned text (which contains a comma) automatically into a float type. Hence you see the error:

ValueError: could not convert string to float: '3,56'

---

Solution

You need to replace the comma ie , with a dot ie . and then invoke float() and you can use the following solution:

• Code Block using replace() :

   asd = driver.find_element_by_xpath("/html/body/div[2]/div[4]/div[2]/div[2]/div[2]/div/div/div/table/tbody/tr[3]/td[17]") # asd = "3,56" print(float(asd.replace(",","."))) print(type(float(asd.replace(",","."))))

• Console Output:

   3.56 <class 'float'>

---

Update

Incase, you want to completely remove the comma character ie , and convert the resultant text ie 356 into float you can use the following solution:

• Code Block using re() :

   import re asd = driver.find_element_by_xpath("/html/body/div[2]/div[4]/div[2]/div[2]/div[2]/div/div/div/table/tbody/tr[3]/td[17]") # asd = "3,56" print(float(re.sub('[,]', '', asd))) print(type(float(re.sub('[,]', '', asd))))

• Console Output:

   356.0 <class 'float'>